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    Question

    The quantity of milk in a mixture is 80 litres more than

    that of water in it. 100 litres of water is added to the mixture such that the quantity of milk in the resultant mixture is 90% of the quantity of water in it. Find the ratio of initial quantities of milk and water respectively.
    A 2:5 Correct Answer Incorrect Answer
    B 7:5 Correct Answer Incorrect Answer
    C 4:5 Correct Answer Incorrect Answer
    D 9:5 Correct Answer Incorrect Answer
    E none of these Correct Answer Incorrect Answer

    Solution

    ATQ, we can say that Let the initial water be 'x' litres. Then Initial milk will be = (x + 80) litresย  (x + 80)/(x+ 100) = 9/10 x = 100 so, Initial waterย  will be = 100 litresย  and, Initial milk will be = 180 litresย  hence, the Required ratioย  will be = 9:5

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